Mark Zuckerberg spent $14.3 billion to hire the guy who trained everyone else’s AI. Now we get to see if it was worth it. Meta dropped Muse Spark this week — the first model from Superintelligence Labs, led by former Scale AI CEO Alexandr Wang. It’s proprietary. It’s consumer-focused. And it represents the most dramatic strategic pivot in Meta’s AI history: the company that championed open-source AI just went closed. ...
OpenAI’s next flagship AI model is codenamed after a potato. And it might be the most important thing the company has built since ChatGPT. Greg Brockman, OpenAI’s president, confirmed on the Big Technology podcast that Spud has finished training. It’s not an incremental GPT-4o update. It’s an entirely new base model — nearly two years of research condensed into what Brockman calls a “major step toward AGI.” The timing is no accident. Spud lands in the same week as OpenAI’s $122 billion fundraise, the death of Sora, and Anthropic’s alarming Mythos leak. Welcome to the most consequential week in AI this year. ...
Anthropic spent months carefully planning the reveal of its most powerful AI model. Then someone forgot to flip a toggle, and the whole thing spilled onto the open internet. On March 26, security researchers discovered nearly 3,000 unpublished files sitting on Anthropic’s public-facing infrastructure — draft blog posts, internal PDFs, and detailed documents describing a model called Claude Mythos, codenamed “Capybara” internally. Anthropic has since confirmed it’s real, it’s in early testing, and it represents what they call a “step change” in AI capabilities. ...
Anthropic just got caught with its pants down. The company building what it calls the most safety-conscious AI on the planet accidentally left its biggest secret on a publicly searchable server. The secret? Claude Mythos — a new model tier that reportedly leapfrogs everything else in the industry. And the kicker? Anthropic’s own internal docs warn that Mythos poses “unprecedented cybersecurity risks.” You can’t write irony this good. What Got Leaked Fortune broke the story Thursday: nearly 3,000 unpublished documents, including a draft blog post announcing Claude Mythos, were sitting in an unsecured data store. Not a sophisticated state-sponsored hack. Not a disgruntled employee. A CMS misconfiguration. Human error. ...
A trillion-parameter AI model materialized on OpenRouter on March 11 with no announcement, no creator listed, and no explanation. It’s free. It has a million-token context window. And after processing 160 billion tokens in a single week, nobody can definitively say who built it. Its name is Hunter Alpha. And it might be the most fascinating AI story of 2026 so far. An AI Model That Appeared Out of Thin Air OpenRouter — the popular API gateway that routes queries across dozens of models — tagged Hunter Alpha as a “stealth model.” That’s the platform’s diplomatic way of saying: we genuinely don’t know who’s behind this. ...